Neewer Folding Aluminum Parabolic Antenna Range Booster for DJI Phantom 4 Phantom 3 Pro/Advanced Inspire 1 Controller Transmitter Signal Extend (Silver) Compatible with DJI Phantom 4 / Phantom 3 Pro/Advanced / Inspire 1 controller transmitter Accurate parabolic curved booster completely reflects the remote signal to the antenna(the focal point of the reflector) Improves both remote control and Wi-Fi video connection performance Features highly reflective aluminum interior layer. Folding design. Easy to carry NOTE: DJI Phantom 3 controller is NOT INCLUDED